hutchison



(No Model.) 3 Sheets-Sheet -1.

BHUTOHISONJ Machine for Cleaning andPolishing Forks. No. 237,536.Patented Feb. '8, I881 N-PEFERS, PHOTO-LITHQGRAPHER, WASHINGTDN. D C.

(No Model.) 3Sheets-Bheet 2.

*E. HU'TOHISON. Maohinefpr Cleaningand PolishingPorks.

.PatentedFeb. s, 1881'.

Him" f N. PETERS, PNOTOLITHOGRAFHER; WASHINGTON. D Q

(No Model.) 3Sheet.s-.- -Sheet s.

E. HUTO'HISON; A Machine forOleani-ng and PolishingPorks No. 237,536.Patented Febrs, 1 8-81 NJETERS, FHOTO-LITHOGRAPHER.WASHINGTON. D. C-

.MTJED' STATES PATENT Fr es.

MACHINE FOR CLEANING AND POLISHING FORKS.

SPECIFICATION forming part of Letters PatentNo. 237,536, datedFebruaryS, 1881.

Application filed December 6, 1880. (No model.) Patented in England Jannary 1, 1880.

To all whom it may concern Be it known that I, EDWARD HUTGHISON,

of Theydon Bois, in the county of Essex, England, have invented a newand useful Machine for Cleaning and Polishing Table-Forks,(for

' which I have obtained a patent in Great Britcleaned. The said slidersare forced outward by springs a a their outward motion being limited bythe engagement of slots a d formed' therein with stops a a, and areprevented from rising by covering-plates (L b secured by screws a b,which pass through the said stops and engage in tapped holes formed inthe under parts, a W, of the said frames. In the plan, Fig. 1, thecovering-plate of the frame bis shown partly broken away, and two of thesliders and springs are omitted, in orderclearly to show the arrangementof the parts. The frame ais aflixed to the side frames, 0 c, of themachine, which are screwed to the base 0*, and the frame I) is mountedin slots (one of which is shown at c, Fig. 2) formed in the said frames,so as to be capable of adjustment nearer to or farther from the frame a.

a b are sliding plates, which lie between the sliders a a b b and theunder part of the frames at b. The said plates a b are caused to projectbeyond the said sliders, as shown in Fig. 4, or are withdrawn into theposition shown in Fig. 3, and the frame-b is advanced toward orwithdrawn from the frame a by means of the following mechanism: cl is ascrewed tube,which passes through a screwed hole in a bar, 0?, whichconnects the side frames, 0 0. The said screwed tube 01 is provided witha milled head, 01*, and lock-nut d, and surrounds a spindle, 6, providedwith a crank-handle, e, and having formed on it a shoulder, e againstwhich the inner end of the screwed tube d bears. b is a socket formed onthe frame b, in which socket the larger end of the spindle 0 lies, andwith which it is connected by the engagement of a screw, b in the saidsocket with a spiral groove, 6 formed in the said spindle. e is atubular recess formed in the spindle e, in. which recess a tubularslide,f, lies, the said slide and spindle being connected by theengagement ofa screw, e secured in the latter with a spiral groove, f,in the former.

g h are rocking shafts, the ends of which 'work in the side frames, 0 c.The said shafts have formed on or aflixed to them arms or levers g ghflh, the free ends of which engage in holes formed in the plates a I)",and the said shafts are connected to a rocking bar, 2', working on afulcrum or center, i, the shaft .g being connected to one end of thesaid bar by means of an arm or lever, 9 and link 9 and the shaft h beingconnected to the bar by means of an arm or lever, h, a pin on the freeend of which engages in a slot, j, formed in the upper part of a slide,j, working in guides j j to the lower end of which slide the barz' isjointed. The slide f is connected to the shaft h by means of a loop,f onthe former, which is engaged with a finger, h on the latter.

The action of this arrangement is as follows: When the screw (1 isturned in one or other direction the. frame I) is adjusted either nearerto for farther from the frame a, and when brought to the requiredposition is secured by the lock-nut d. When the handle eis turned to theleft the engagement of the screw 0 with the spiral groove f in the slidef causes the said slide to advance, and through its connection with therocking shaft h and the connection of the said shaft with the plate 11the latter is thrown forward into the position shown in Fig. 4, (whichis a section of the frame 11 and parts carried by it, drawn of the fullsize,) and at the same time the arm or lever It on the said shaft raisesthe slide j and the end of the bar '5, with which it is connected, andthe opposite end of the said bar being consequently depressed, the platea is, through its connection with the shaft g, also thrown forward. Theturning of the spindle 0 also slightly withdraws the frame I), owing tothe engagement of the screw b with the spiral groove 0' in the saidspindle. Fig. 5 is a section of the parts d of and a portion of theframe b, drawn of the full size, and shown in the positions to whichthey are brought by turning the handle 6 to the left. 'When the handle 6is turned to the right the plates a b are withdrawn and the frame I) isslight] y advanced.

k k are brushes by which theforks are cleaned. To the brush k brackets70 are secured, the said brackets being supported by levers ll, jointedat Z to sliders mm working on bars a n. The brush k is connected to thesaid brackets by the engagementof lugs onits ends with slots in the saidbrackets, one of which slots is shown at 70 Fig. 2. His aspring, whichis compressed between the back of the brush it and the rod 70 whichconnects the upper ends of the brackets 70 k by means of which springthe brushes k k are kept pressed together. The brushes arecounterbalanced by weights l 1 The slides m m are connected by bars orrods 0 0 with cranks p 19, formed on fly-wheels qq, secured to arotatory shaft, '1", mounted in the side frames, 0 c, ofthe machine. 19is a handle on the crank 19, by turning which reciprocatory motion isimparted to the brushes when the machine is worked.

The method of using the machine is as follows: The plates a b areprojected by turning the handle 6 to the left, and the screw (1 isturned in one or other direction until the frame I) is adjusted to sucha distance from the frame a as will admit of the forks to be cleanedrestin g at their extremities on the projecting ends of the said plates.The forks, after being smeared with a suitable polishing material, arethen placed in the machine, and the handle 6 is turned to the right,which causes the frame b to advance slightly, the advance of the saidframe causing the forks to be securely griped 1 between the ends of thespringsliders a a b I). i The turning of the handle 6 also causes theplates a b to be withdrawn under the said sliders during the advance ofthe frame b. The brushes 7c 70 are then caused to move to I and fro (byturning the handlep until the forks are cleaned and polished, when theyare released by turning the handle 6 to theleft, and are then removedfrom the machine.

In the drawings LL have illustrated the machine so formed as to becapable of being screwed to a table or dresser; but, if preferred, legsor standards may be formed on or secured to it, so as to raise it to aconvenient height, and, if desired, a drawer or receptacle may bearranged below the brushes to receive the powder falling from them whenthe machine isbein g worked.

Having now described the nature of my invention and the manner in whichit is to be performed, I wish it to be understood that I do not limitmyself to the precise details hereinbefore described, and illustrated inthe accompan ying drawings, as they may be varied without departing fromthe nature of my invention; but

1 claim as my said invention 1. A machine for cleaning and polishingforks, comprising parallel frames carrying spring-sliders for graspingthe extremities of the forks to be cleaned, and reciprocating brushes,substantially as described.

2. The combination of supporting devices for holding forks by theirextremities with one or more brushes or polishers and operatingmechanism, substantially as described, so that the forks, while held bysaid supporting devices, are operated upon bysaid brushes or polishers,substantially as described.

3. In a machine of the character described, the combination of thespring-sliders having grooved ends, and the supporting-plates, as andfor the purposes set forth.

4.. The combination of a stationary and an adjustable frame,spring-sliders, and supporting-plates carried by said frames, means, asindicated, for advancing said sliders and withdrawing said plates,brushes, or polishing devices, and means for operating the same,substantially as described.

EDWARD HUTOHISON. [L. s.]

Witnesses:

J AMEs E. NAYLoR, EDWIN Bron.

